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US4886549A Vat dye and sulfur dye compositions 失效
大便染料和硫化染料组合物

Vat dye and sulfur dye compositions
摘要:
Specific vatting accelerators according to claims 1 and 2 are described. These can be added to a vat dye or sulfur dye composition, or to a dye bath or printing paste containing a vat dye or sulfue dye, by virtue of which an improvement of dye yield, particularly on cellulose materials, is obtained.
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